Posts by Samuel

Total # Posts: 326

1. physics

the movement of a couple of 100N but 2.5m apart is
2. #include <iostream> #include <cmath> using namespace std; int main () { int Length= 1, Weight= 2, Volume=3; int cm, m, km, mm2, m2, pt, qt, gal,g, kg; int Choice; long double inch= 2.54, yard= 0.9144, mile = 1.609344; long double ounce= 28.349523, pound= 0.453592, ...
3. Computer C++ Programing

Using the if… else if, write a menu-driven program that permits the user to select one of the metric conversions: Lengths Weights Volumes Areas Use the following conversions: For Length: Inches to centimeter (1 inch = 2.54 cm) Yards to meters (1 yard = 0.9144 m) Miles to ...
4. Programing

Using the if… else if, write a menu-driven program that permits the user to select one of the metric conversions: Lengths Weights Volumes Areas Use the following conversions: For Length: Inches to centimeter (1 inch = 2.54 cm) Yards to meters (1 yard = 0.9144 m) Miles to ...
5. math

the minute hand of a clock is 6cm long.how far does the end of the hand travel is 35minute
6. Thank you!
7. Is the height 5.2 then?
8. Math

What is the height of an equilateral triangle with a side length of 6
9. science

A 40W bulb is switched on. It burns out brighter when it was switched on than a short time later.What account for this change in brightness
10. science

Two charged particles are 8.5cm apart .They moved and the force on each of them is found to be tripled .How far apart are they now
11. math

Using the vertices: B(-9,1), E(2,3), F(12, -2), G(1,-4). Determine whether ?BEFG is a rhombus, a rectangle, or a square. List all that apply and show the steps
12. math

Determine whether the figure with vertices R (-2, 5); O( 1,3); M(-3, -4); Y(-6,-2) is a parallelogram. Use the Distance and Slope Formulas.
13. I'm sorry I meant find A) Sum of the interior angles B) Measure of an interior angle C) Measure of an exterior angle. for those polygons
14. math

For the following regular polygons, find the following, round to the nearest tenth, if necessary. 1. 24-gon 2. 30-gon 3. Polygon with 40 sides
15. Science

How is the equator similar to the prime meridian?
16. math

Find the perimeter of the given triangle. Round your answer to the nearest tenth if necessary. ?BCH, if ?CBH ? ?FEH, ADEG is a parallelogram, BH = 4, HE = 7, EF = 25, and HF = 24.
17. math

Find the equation of the line that passes through (-2,-4), (1,-3) is it y=1/3x + -2 or y=1/3x+-10/3
18. math

A=P+Prt solve for t I don't know if it is either t= (a-p)/pr or t=-(1/r)+(A/Pr) or is it a completely different answer? Thank you in advance!!!
19. Never mind I think I understand thank you
20. So I'm trying to find what y is?
21. Algebra

a. For the first company, express in words the amount the cab company charges per ride and per mile. Charge per ride: \$3 per mile \$0.50 b. Write an equation in slope-intercept, point-slope, or standard form. Explain why you chose the form you did. y=3+0.50? c. What do the ...
22. A hamburger stand sells hamburgers for \$3.87. In one day, the stand made \$433.44. How many hamburgers were sold?
23. Math

You write 5 1?2 pages of a report in 2 1/3 hours. What is the average number of pages you write per hour?
24. Science

The two variables of interest in this lab are: "percent change in mass" of bag and "sucrose molarity" in the bag solution. On a graph of these two variables, which would be the independent variable, and which would be the dependent variable?
25. Math

Show that if the diagonals of a quadrilateral are perpendicular, then its area is half the product of the diagonals. What kind of drawing do I do? And how doI solve this? Thank you!
26. Arithmetic

A geometric series has a positive common ratio of r. The series has a sum to infinity of 9 and the sum of the first two terms is 5. Find the first four terms of the series.
27. Arithmetic

The sum of three consecutive terms of a geometric progression is 42, and their product is 512. Find the three terms.
28. math

Simplify each expression so that no negative exponents appear in the final result. Assume that all variables represent nonzero real numbers. 1. (12k^-2(k^-3)^-4)/(6k^5) 2. (3rs^-2)/(3^2r^2s^-4)
29. math

In a random sample of 200 students who were asked their favorite color, it was found that twenty more students liked blue than purple and eight fewer liked green than blue. Find the number of students who chose each color as their favorite. I posted this question earlier and ...
30. math

Write a system of equations, three equations/three unknowns, that has (1, 2, 3) as the solution. for this can I just write any random coefficient and then put that as equal to 1,2 or 3? or if not what type of math would I use?
31. or would it be 3x+12?
32. so, that would be 10.66666666666 then for x
33. math

In a random sample of 200 students who were asked their favorite color, it was found that twenty more students liked blue than purple and eight fewer liked green than blue. Find the number of students who chose each color as their favorite.
34. Math

Of the students in a certain classroom, 9 are in the school play, 12 are in the orchestra, and 15 are in the choral group. If 5 students participate in exactly 2 of the 3 activities and all other students participate in only 1 activity. How many students are in the homerooooom?
35. Math

I am 10years old my sister is 4years,in how many years shall i be twice as old as she will be?
36. Social Studies

Victory at which Battle convinced the British to help the Americans? I'm thinking its the Battle of Saratoga
37. Math

In a circle whose center is O, arc AB contaisn 100 degrees. Find the number of degrees i angle ABO?
38. GEOGRAPHY

WHAT IS LONTIUDE
39. maths

From point AandB on level ground,the angle of elevation of the top of a building are 25degree and 37degree respectively.if |AB|?57m,calculate,to the nearest metre,the distances of the top of the building from AandB if they are both on thesame side of the building.
40. Not 3yrs but 3hrs
41. statistics

a survey from teeneage research unlimited found that 30% of teenage consumers receive their spending money from parttime jobs. If 5 teenagers are selected at random, find the probability that at least 3 of them have part time jobs
42. Algebra

1/3 of a number is added to 5. the result is one and half times the original number.find the number.
43. further maths

given that p=i+j-2k and q=2i-j+2k.find two vectors m and n satisfying that m is perpendicular to p,n is parallel to p and m+n=q
44. Surds

Write (2+3^1/2)^1/2 in the form root a plus root b ..and find a and b
45. Math

Austin pays \$1.50 per day for high speed internet after paying the equipment fee of \$35.00. Identify the constant of proportionality that relates his internet charges (y) to the number of days (x) he has internet.
46. physics

(1) a car travelling at a constant speed of 20ms-1 overcomes a constant frictional resistance of 300N. What is the horse power of the engine? ( take 1h.p = 3/4 kw)
47. 22cm
48. Physics

A tennis ball is thrown with a velocity of 30m/s at an angle of 60^ of the horizontal calculate the time,m/s,and the range
49. Thank you! Yes I need to narrow it down. This professor gets on my nerves.
50. English Beowulf

How did the culture of Beowulf view pride? Why?
51. Physics

The density of copper is 9.8 kilograms per meter cube and the density of gold is 1.9 kilograms per meter cube. When two wires of these metals are held under the same tension, the wave speed in the gold is found to be half that in the copper wire. What is the ratio of the ...
52. maths sir-reiny help calculus

solve the differential equation (x^2-xy+y^2)dy-xydx=0 plz show me working
53. so what do i do from here now sir
54. calculus help me pllllllllllz

Find out what kind of improper integral is given below §dx/{x^4+4}....?,hence evaluate the integral with upper boundary=infinity lower boundary =0 i need help plz show me full work
55. maths need help

the transverse of the conic:3x^2-y^2+2y-1=0 is ???
56. In a farm a man counted his goats and hens .In all he had 30 legs and 13 heads.how many goats are in the farm and how many hens are in the farm
57. science

A concave lens or focal lens 10cm produce an erect image 40cm from the lens .Determine the object distance and magnification.
58. Probability

Find the probability that a committee of 10 people chosen from an organization consisting of 40 doctors and 35 dentists will include 3 doctors and 7 dentist. 40c10 + 35c10 not sure what to do after setting it up. Need help
59. Chemistry

In the zinc-copper cell, Zn(s) | Zn^+2(1M) || Cu^+2(1M) | Cu(s), which electrode is negative? Cu^+2 Cu(s) Zn(s)*** Zn^+2
60. Chemistry

What is the oxidation half reaction for the following equation: Cr2O7^-2 +Fe+2 - - > Cr^+3 + Fe^+3 Cr^+3 - - > Cr2O7^-2 Fe^+2 - - > Fe^+3 Fe^+3 - - > Fe^+2 Cr2O7^-2 - -> Cr^+3***
61. Chemistry

What is the reducing agent in the following reaction? 2K + S - - > K2S K*** S K2S None of these
62. physics

A piece of copper of mass 40 grams at 20 degrees Celsius is placed in a copper calorimeter of mass 60 grams containing 50 grams of water at 10 degrees Celsius .ignoring heat losses,what will be the final steady temperature after stirring?(specific heat capacity of copper and ...
63. calculus-help.. .Me

if y=e^(-kt)[Acosh(qt)+Bsinh(qt)] where A,B,q and k are constant show that d^2y/dt^2+2kdy/dt+(k^2-q^2)y=0 step plz thanks
64. expansion help

find the series of the expansion (1+(1/x^3)) help!!!!
65. physic

Two forces of magnitude 4.ON ans 7.0N act on a small object b. The angle btw the direction along which the force is 50 degree.determine the magnitude *nd direction of d resultant force on d body b.
66. physic

Two forces 5N and 10N act on a body in the direction due North and east respectively at an angle 75 degree. Calculate the resultant force of the inclined angle.
67. chemistry

what will haprn if ammonium chloride solution is used to standardize potassium tetraoxamaganate VII solution instead of ammonium iron II sulphate
68. calculus help

integrate:dx/(3x^3-5)^3 help plz show step
69. Sir it won,t solve it for me i tried it....i don,t even no how to use it...plz help me
70. calculus plz help me

integrate:dx/((x-1)sqrt(x^2-2) plz show solution i plead
71. Economics!

Suppose a chemical company is in a perfectly competitive industry and has a short run total cost curve of TC = q3 + 5q2 + 10q + 10 and a short run marginal cost of SMC = q2 + 10q + 10. At the price of 49, how many will be produced?
72. Use the demand curve to derive MR. NOTE: MR is always two times steeper than the demand curve if the equation is linear. Hence, MR=\$500-20Q. Use MC=MR 100=500-20Q 20Q=400 Q=20 P=500-10(20)=400. Profit per day= There's no AC so I can't locate it. In terms of tax. If it ...
73. Profit maximizing can be achieved using this formula MC=MR. Differentiate TR to get MR= 5000-10Q Differentiate TC to get MC=6Q 5000-10Q=6Q >> Q=312.50 Use the Q to get TR and TC. To find total profit= TR-TC.
74. math

calculate the volume of the solid when the composite of a cube of edge is 28cm and the square -based pyramid of it height is 16cm
75. math

76. but i don't know how
77. math

make a table and graph each quadratic function. use integers from -3 to 3 inputs 1. y=-x^2 2. y=2x^2 3. y=-8x^2 4. x^2 + 2
78. Probability

The letters in the word MATHEMATICS are arranged randomly. What is the probability that the first letter is E? Preview What is the probability that the first letter is M?
79. 26*25*10*9*8*7*6*5*4= 393120000
80. Probability

A computer password is required to be 9 characters long. How many passwords are possible if the password requires 2 letter(s) followed by 7 digits (numbers 0-9), where no repetition of any letter or digit is allowed?
81. english,maths,chem,phy,bio,agric,civic,etc

What are the equations of motion.
82. life orientation

indetify three courses are interested after grade 12
83. mgh =1/2mv"2 v"2= 2gh v"2=2x10,x12 v=15.5
84. Math

How do i solve for b. 5=2pi/b
85. A sin B (x +- C) d How do i find each letter?
86. Math

How do i find out the sin and cos equation of a sinusoidal graph?
87. Math

How do i find "d" and "c" values in y=cos(x+(pi/2)) Base equation is y= A cos B (x +- C) +- D
88. Yes unclear
89. Math

How do i find the asymptotes of: y=(1/x-4)+3
90. Mass=moles/atomic mass of fe2o3
91. Math

How do i find asymptotes without graphing?
92. Physics

How much heat is absorved when a temparature of a piece of iron of mass 0.1kg and specific heat capacity 2*10 rest to power of 2 J/kg/k is rise from 25degree celcius to 75degree celcius
93. physics

A stone of mass 0.7kg is projected vertically upward with a speed of 5m/s.calculate the maximum height reached. [Take g=10m/s^2 and neglect air resistance]. "
94. SAMUEL
95. these are correct
96. COMPUTERS

CALCULATE THE AREA OF CIRCLE OF RADIUS 2CM USING FORTRAN PROGRAMMING LANGUAGE
97. Science

A compound on analysis as 87:8% c,12:2%h determine its empirical formular&molecular formular given mass=56gmol
98. Chemistry

A compound on analysis as 87:8% c,12:2%h determine its empirical formular&molecular formular given mass=56gmol
99. calculus

Find the minimum distance between the curves y=e^x and y=lnx. Hint: Use the fact that e^x and lnx are inverse relationships. I have no idea where to start. Thanks!
100. math

The perimeter of a rectangular concrete patio is 38 meters. The area is 90 square meters. What are the dimensions of the patio?
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